The steering column lock control module (SCLCM) receives an input from the body control module (BCM) enable relay. When the BCM goes to the off power mode then a low input is sent to the SCLCM.
This diagnostic supports the following DTC:
DTC B2907 Steering Column Lock Solenoid/Motor Enable Relay Circuit
• | DTCs B1327 or B1328 are not set as current. |
• | The condition must be present for 300 ms. |
When the SCLCM is locking the column but no input has been received on the steering column lock enable relay circuit from the BCM.
• | Stores a DTC B2907 in the SCLCM memory. |
• | Stores a DTC B2907.01 in the BCM memory for a short to battery in the steering column lock enable relay circuit. |
• | Stores a DTC B2907.06 in the BCM memory for an open or a short to ground in the steering column lock enable relay circuit. |
• | The SCLCM will command the Service Column Lock Now to turn ON in the driver information center (DIC). |
• | When the SCLCM is locking the column and ground has been received on the steering column lock enable relay circuit for 300 ms. |
• | A history DTC will clear after 50 consecutive ignition cycles if the condition for the malfunction is no longer present. |
• | Use a scan tool. |
Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: Column Lock Schematics Connector End View Reference: Steering Wheel and Column Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 |
Does the scan tool display Disabled? | Go to Step 5 | Go to Step 3 |
3 | Observe the Column Lock Relay Signal parameter in the data list for the body control module (BCM) with the scan tool. Does the scan tool display Off? | Go to Step 6 | Go to Step 4 |
4 | Inspect for poor connections at the harness connector of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 9 | Go to Step 7 |
5 | Inspect for poor connections at the harness connector of the SCLCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 9 | Go to Step 8 |
6 | Repair an open, a short to ground, or a short to battery in the steering column lock enable relay circuit. Refer to Wiring Repairs . Did you complete the repair? | Go to Step 9 | -- |
7 | Replace the BCM. Refer to Body Control Module Replacement . Did you complete the replacement? | Go to Step 9 | -- |
8 |
Important: Perform the setup procedure for the SCLCM.
Did you complete the replacement? | Go to Step 9 | -- |
9 |
Does DTC B2907 reset? | Go to Step 2 | System OK |